JPS63111222U

JPS63111222U -

Info

Publication number: JPS63111222U
Application number: JP237287U
Authority: JP
Priority date: 1987-01-13
Filing date: 1987-01-13
Publication date: 1988-07-16
Anticipated expiration: 2002-01-13
Also published as: JPH0522338Y2

Description

[Brief explanation of the drawing]

第１図Ａは本考案の一実施例に係るプレス型を
示す断面図、第１図Ｂは第１図ＡにおけるＢ−Ｂ
線に沿う断面図、第２図は第１図Ｂの要部を示す
拡大断面図、第３図は第２図における−線に
沿う断面図、第４図Ａ〜Ｄは本考案のプレス型に
よる成型過程におけるワークのストツク部の変形
状態を示す断面図、第５図はポンチとダイとによ
る絞り加工途中を示す断面図、第６図Ａ〜Ｃは本
考案のプレス型によるワークの塑性変形状態を示
す斜視図、第７図は従来のプレス型を示す断面図
である。１……下型、２……上型、４……ダイ、５……
ポンチ、６……ブランクホルダー、１５……凹部
、１６……補助ポンチ。 FIG. 1A is a sectional view showing a press mold according to an embodiment of the present invention, and FIG. 1B is a sectional view taken along line B-B in FIG. 1A.
2 is an enlarged sectional view showing the main part of FIG. 1 B, FIG. 3 is a sectional view taken along the - line in FIG. 2, and FIGS. 4 A to D are press molds of the present invention. 5 is a sectional view showing the deformation state of the stock part of the workpiece during the forming process by the punch, FIG. 5 is a sectional view showing the drawing process in progress using the punch and die, and FIGS. A perspective view showing the state, and FIG. 7 is a sectional view showing a conventional press mold. 1...Lower die, 2...Upper die, 4...Die, 5...
Punch, 6...Blank holder, 15...Recess, 16...Auxiliary punch.

Claims

[Scope of utility model registration request]

A punch for forming at least two drawn products on a workpiece in cooperation with the die, and an upper mold having a blank holder for holding the workpiece between the die and the lower mold. In a press mold that is installed so that they can be approached and separated from each other, a recess is formed in one of the blank holder or the die at a portion of the workpiece that corresponds to between the two drawn products, and the blank holder is An auxiliary punch that forms a stock portion in the workpiece by cooperating with the recess during relative approach movement toward the die is attached to the other of the blank holder or the die so as to be movable toward the recess. When forming the drawn product in cooperation with the die, the stock portion is fed out between the punch and the die while the auxiliary punch is in a retracted state. Type.